Found grease point 6.7L driveshaft, but now what to do? - Dodge Cummins Diesel Forum
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Go Back   Dodge Cummins Diesel Forum > 07.5 - 09 6.7 Liter Cummins > 07.5 - 09 3rd Gen 6.7L Powertrain
07.5 - 09 3rd Gen 6.7L Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine, Transmission, etc...NO ADVERTISING

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Old 03-18-2012, 09:52 PM   #1 (permalink)
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Found grease point 6.7L driveshaft, but now what to do?

I finally found the grease point for the front driveshaft on my 2011 6.7L, and I bought the 1.5-inch needle nose adapter for my grease gun. Tried spooging the grease in there with the needle nose, but when I pull the needle nose adapter away, all I see is grease around the fitting. It's as if the grease is getting blown outside, not into, the fitting.

How are these fittings supposed to work? Looks like there's a little ball at the center of the fitting -- should I expect to push the ball inward with brute force, and then pump the grease? Or does the pressure of the grease force the ball inward on its own, allowing grease to get past it? Is there a spring behind the ball? Should I break it free first by pushing it inward with a (very strong) needle?

Why the hell couldn't they use a zerk. I'm 500 miles overdue and worrying that the front driveshaft isn't properly lubed.

Last edited by amp2005red; 03-18-2012 at 10:05 PM.
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Old 03-18-2012, 10:02 PM   #2 (permalink)
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You need a needle tip for your greasegun.
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Old 03-18-2012, 10:07 PM   #3 (permalink)
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Quote:
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You need a needle tip for your greasegun.
Yes - already done - now I hate to sound like an idiot but forgive me... I mashed the needle nose adapter snug up against the fitting and squeezed the pistol-grip trigger, and when I pull it away, most of the grease (all? not sure) is coming out around the fitting... not into it. It's almost as if the pressure of the grease isn't forcing the little ball back and allowing the grease to go inside the fitting, so the only other place for it to go is around (the outside of) the fitting.

Sorry for my ignorance... I know this should be simple.
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Old 03-18-2012, 10:24 PM   #4 (permalink)
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Did you jack up the front passenger side tire so you can turn the fitting at the best possible angle. Go at it from the passenger tire side in front of the cross member. I haven't tried yet as I'm waiting on my needle to come in the mail, so hope this helps.
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Old 03-18-2012, 11:41 PM   #5 (permalink)
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I don't exactly how the fitting works, but the needle does kind of click in there. NOT with force or an actual click, but I just mean you can feel when it's where it's suppose to be. When it's connected right ALL the grease will go in. If any is not going in I don't think any is going in at all...
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Old 03-18-2012, 11:48 PM   #6 (permalink)
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Quote:
Originally Posted by amp2005red View Post
Yes - already done - now I hate to sound like an idiot but forgive me... I mashed the needle nose adapter snug up against the fitting and squeezed the pistol-grip trigger, and when I pull it away, most of the grease (all? not sure) is coming out around the fitting... not into it. It's almost as if the pressure of the grease isn't forcing the little ball back and allowing the grease to go inside the fitting, so the only other place for it to go is around (the outside of) the fitting.

Sorry for my ignorance... I know this should be simple.
The needle we're talking about looks like a syringe needle is that what you're using or are you using the tapered pointed tip?

The needle actually slides in the hole.
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Old 03-19-2012, 12:13 AM   #7 (permalink)
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Got two types





Need to use the top one.
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Old 03-19-2012, 12:35 AM   #8 (permalink)
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Got two types





Need to use the top one.
Did you post those backwards? I use the bottom one, I don't see how the other one would work...
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Old 03-19-2012, 12:41 AM   #9 (permalink)
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you just attach it to the gun like normal no having to make special adapters
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Old 03-19-2012, 08:59 AM   #10 (permalink)
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Where did you find that one?
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Last edited by 2012 RAM 3500; 08-23-2012 at 05:57 PM.
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Old 03-19-2012, 11:21 AM   #11 (permalink)
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I have both but I use the one pictured on the bottom . (bigger of the 2)

I don't see the syringe needle supplying much grease or working very well?
All you do is hold it firmly in place and give your grease gun a couple of pumps.

If you haven't done this before you may need to clean the grease point first.
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Old 03-19-2012, 01:26 PM   #12 (permalink)
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I use the bottom one also. I use about a 4" one that I bent into a 45 degree angle. Much easier to get it onto the fitting at the right angle.
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